To put it shortly, the answers are C, D, E, and F.
With C. being "Increased Immigration",
D. being "The desire for adventure/land/riches",
E. being "The Discovery of gold", and
F. being "The Homestead Act".
Hope this helps :)
Subduction is a specific type of plate interaction. The process occurs when one lithospheric plate meets another—that is, in convergent zones—and the denser plate sinks down into the mantle.
During the process of subduction, the cooling process increases the density of the crust.
It is when a stream or river deposits sediments into another body of water. Your best answer is D.
Boston is an example of a grid city.
Hope this helps you! (:
-Hamilton1757
